In an article on real time streaming video for police cars, Crain's story notes some privacy safeguards by the police department:
The Police Department says it long ago developed policies with privacy safeguards to assuage concerns about Big Brother with a Badge. Lewin says facial recognition is applied to video only after the fact to identify suspects, not in real time. Users have to log in, and the department can go back later and view what the officer was watching. The city requires permission from building owners to see live video from interior feeds and says it doesn't archive such video. Also, only staff at police facilities can control the city's cameras and monitor those in private hands.
The ACLU wants the Police Department's guidelines to be approved by the City Council and subject to public disclosure and debate. But that hasn't happened. “You have this lack of transparency with this really powerful surveillance tool that continues to cause concern,” Yohnka says. “This is the time to create formal guidelines everyone can see, everyone can judge and everyone can know.”
Video is just one piece. Police eventually would like to integrate other tools, such as ShotSpotter, audio technology that identifies the locations of gunshots. Police already can deliver floor plans, evacuation routes and incident histories involving particular addresses to officers in the field.